净现值法:
甲方案。NPV=90*PVA(5,9%)/(1+9%)-200-100/(1+9%)=29.36
乙方案。NPV=90/(1+9%)+100/(1+9%)^2+100/(1+9%)^3+80/(1+9%)^4+60/(1+9%)^5-300=39.63
获利指数法:
甲方案。PI=90*PVA(5,9%)/(1+9%)/(200+100/(1+9%))=1.1997
乙方案。PI=90/(1+9%)+100/(1+9%)^2+100/(1+9%)^3+80/(1+9%)^4+60/(1+9%)^5/300=1.1321
不管是从净现值还是获利指数看都是乙方案比较好